Tire



patented May 13, 19.26.

rA'rsn'r ornics.

THOMAS H. WRIGHT, LOS ANGELES, CALIFORNIA.

TIRE.

Application filed July 1, 1925. Serial No. 40,856.

provide a wheel construction which is particul-arly adapted to be used on monorail cars and engines and other structures where it is di-ilicult to remove'the wheels without dismantling a considerable part of the structure of the car or engine.

These objects are accomplished by the disclosure herein set forth by the following description of the accompanying drawings, illustrating a practical embodiment of the invention, in which I Figure 1 is aside elevation of a monorail construction showing the improved wheel.

mounted on a track and supporting the car,

Fig. 2' is a transverse section taken on the line 22 of Fig. 1,

Fig. 3 is a side elevation of the improved wheel, the parts being broken away and shown in section,

Fig. 4 is a section taken on the line 414 of Fig. 3,

Fig. 5 is a fragmentary section of the tire of the improved wheel,

Fig. 6 is a fragmentary section through the web and felly showing the retaining means in place thereon before the tire is applied thereto, and

Fig. 7 is a perspective view of a split ring used in retaining the tire upon the wheel.

Referring by numerals to the accompanying drawings, particularly to Figs. 1 and 2, 1O designates a frame-work adapted to support a single rail 11 of a monorail construction, generally designated at 12, comprlslng a car 13 which is carried on the rail 11 by two or more wheels constituting the invention and generally designated at l l, which are mounted on axles 15 carried by journals secured to the body 17 of the car 13.

The improved wheel has a hub 18, web 19 and a felly 20. The felly 20 has a straight peripheral face 21 and flat side faces 22 and 23. An annular V-shaped groove 24. is formed in the face 23 and an annular recess 25 is formed in the face 21 of the felly 2O formed of spring metal and scribed.

below the surface or face 21 which is. adapted to receive a split. ring substantially square-shaped in cross section, designated at 26. The ring 26 has inwardly turned lugs 27 extending through a slot 28 formed in the felly 20 and communicating with the groove 24. Each of the lugs 27 has an opening 29 in its lower end, through which extends a bolt 30 having a nut 31 and is provided for a purpose hereinafter de- A removable tire, generally designated at 32, has an internal surface 33 which is adapted to engage the peripheral face 21 of the felly 20, and hasa lateral annular lug 34 adapted to engage the groove 24 and also has an annular recess 35 of the same shape as the recess 25.

In assembling, assuming the wheel is in a vertical position, the ring 26 is first placed in the recess 25 by inserting the lugs in the slot 28, and then moving it downwardly on an angle. The ring is then pressed inwardly and it will drop into the recess 25 when in register therewith. The bolt 30 is then placed in the openings 29 in the lugs 27 and the nut 31 turned to contract the ring so that its outer face 26 will be slightly of the felly, as shown in Fig. 6. The tire 32 is then placed on the felly 20 and a plurality of set screws 36 having lock nuts 37, radially mounted in one side of the felly, are turned to expand the ring 26. When the ring is fully eX- panded, that is, when its outer face engages the inner face of the recess 35 in the tire, a portion of the ring will still be in the recess 25 in the felly, as clearly shown in Figs. 3 and 4. Hence when the ring is expanded, the tire will be firmly held in place upon the felly. It will be obvious that the tire may be removed by reversal of the above operations.

The tire may be provided with oppositely disposed flanges 38 when used upon a men orail system or may have a single flange if the improved wheel is used on cars of the ordinary double rail system.

It will be understoodt-hat various changes in the detail of construction may be made without departing from the spirit or scope of the invention asdefined by the appended claims.

I claim 1. In a car wheel, a removable tire l1aving an internal annular recess formed therewith an annular recess tormed in the telly ot the wheel, a split ring torrned 0t spring metal adapted to fit within the recess formed in said telly, and a plurality ot set screws carried by the telly adapted to expand said split ring into the internal annular recess formed in said removable tire, said split ring being adapted to hold said tire trom lateral movement on the telly by a portion ot said split ring remaining in the internal annular recess in the telly when said set screws are tightened.

2. In a car wheel, a removable tire having an internal annular lug on one side thereof adapted to engage an annular groove formed in the tace ot' the telly ot the wheel, there being an internal annular recess tormed in said removable tire adapted to register with an annular recess tormed in the tace 0t said telly, a split ring termed of spring metal adapted to fit within the recess in said telly, and a plurality ot set screws carried by said telly adapted to expand said split ring into engagement with the internal annular recess tormed in said removable tire.

3. In a car wheel, a removable tire having an internal annular recess termed therein, adapted to register with an annular recess formed in the telly ot the wheel, a split ring formed of spring metal and substantially square-shaped in cross section adapted to fit within the recess tormed in said telly, and a plurality of radially mounted set screws carried by the telly adapted to expand said in adapted to register split ring into the internal annular recess formed in said removable tire, said split ring being adapted to hold said tire trom lateral movement on the telly by a portion of said split ring remaining in the internal recess in the telly when said set screws are tightened.

t. In a car wheel, a removable tire having an internal annular recess tormed therein adapted to register with an annular recess tormed in the taco ot the telly, a split ring termed of spring metal and having inwardly turned lugs adapted to extend into a slot in said telly, a plurality 0t set screws mounted in the telly adapted to expand said split ring into the internal annular 'ecess formed in said tire, and means tor contracting said split ring.

5. In a car wheel. a removable tire having an internal annular recess tormed therein adapted to register with an annular recess tormed'in the face ot the telly, a split ring tormed 0t spring metal and having inwardly turned lugs adapted to extend into a slot in said telly, a plurality of set screws mounted in the telly adapted to expand said split ring into the internal annular recess formed in said tire, and a bolt having a nut extending through openings formed in the lugs of said rings tor contracting said split ring.

In testimony whereot I. have signed my name to this specification.

THOMAS H. lVRIGHT. 

